● Our Push Lock system creats a secure connection that will not accidentally come undone, and will also provide safe and continuous power.● Secure fit reduces the chance of hazardous arcing.● The connector is made from a durable impact resistant PVC plastic.● Heavy duty connector remains secure even after years of use.Approval: Connector: UL, C-UL+TUV, Plug, SJTW: UL, C-UL+European